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          LV01-13-C语言-函数指针的应用
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    <div class="post-body" itemprop="articleBody"><p>本文主要是C语言基础——函数指针的应用相关笔记，若笔记中有错误或者不合适的地方，欢迎批评指正😃。</p>
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<p>前边在《LV01-06-C语言-指针》中的第五部分已经学习了函数指针的概念和基本的应用，本篇笔记主要是函数指针的应用，在这里需要完成一个命令执行的过程。</p>
<h1 id="1-命令处理函数"><a href="#1-命令处理函数" class="headerlink" title="1.命令处理函数"></a><font size=3>1.命令处理函数</font></h1><h2 id="1-1函数定义"><a href="#1-1函数定义" class="headerlink" title="1.1函数定义"></a><font size=3>1.1函数定义</font></h2><p>接收到命令的时候，需要使用函数指针指向对应的命令处理函数，我们的命令处理函数如下：</p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="type">unsigned</span> <span class="type">int</span> <span class="title function_">func_name</span><span class="params">(<span class="type">int</span> arg, <span class="type">int</span> *pParam, <span class="type">void</span> *pBuf)</span></span><br><span class="line">&#123;</span><br><span class="line">    <span class="comment">// ... ...</span></span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<p><strong>【参数说明】</strong></p>
<ul>
<li>arg ：int类型参数，调用命令处理函数时传入。</li>
<li>pParam ：int类型指针变量，调用命令处理函数时传入。</li>
<li>pBuf ：void 类型指针变量，指向一块内存区域，用于接收命令下达时命令中的信息，可以自定义。</li>
</ul>
<h2 id="1-2函数声明"><a href="#1-2函数声明" class="headerlink" title="1.2函数声明"></a><font size=3>1.2函数声明</font></h2><p>上边的函数定义之后肯定是需要声明的呀，如下所示：</p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="type">unsigned</span> <span class="type">int</span> <span class="title function_">func_name</span><span class="params">(<span class="type">int</span> arg, <span class="type">int</span> *pParam, <span class="type">void</span> *pBuf)</span>;</span><br></pre></td></tr></table></figure>

<p>会发现，这样是有些长，当命令多起来的时候，他们唯一的区别就是函数名不同，这样我们可以使用一个宏定义，定义一下函数的声明格式：</p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#<span class="keyword">define</span> HOST_CMD_PROCESS_FUNC(_name_) unsigned int _name_(int arg, int *pParam, void *pBuf) <span class="comment">// 方便定义命令处理函数的函数名</span></span></span><br></pre></td></tr></table></figure>

<p><strong>【注意】</strong>注意这里不要写成下边这样：</p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#<span class="keyword">define</span> HOST_CMD_PROCESS_FUNC(_name_) (unsigned int _name_(int arg, int *pParam, void *pBuf))</span></span><br></pre></td></tr></table></figure>

<p>这样可能会报以下问题：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">error: expected identifier or ‘(’ before ‘unsigned’</span><br><span class="line"><span class="meta prompt_"> #</span><span class="language-bash">define HOST_CMD_PROCESS_FUNC(_name_) (unsigned int _name_(int arg, int *pParam, void *pBuf))</span></span><br></pre></td></tr></table></figure>

<p><strong>【声明实例】</strong></p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">HOST_CMD_PROCESS_FUNC(HostTest1);</span><br></pre></td></tr></table></figure>

<p>这就等价于：</p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="type">unsigned</span> <span class="type">int</span> <span class="title function_">HostTest1</span><span class="params">(<span class="type">int</span> arg, <span class="type">int</span> *pParam, <span class="type">void</span> *pBuf)</span>;</span><br></pre></td></tr></table></figure>

<h2 id="1-3函数指针定义"><a href="#1-3函数指针定义" class="headerlink" title="1.3函数指针定义"></a><font size=3>1.3函数指针定义</font></h2><p>当我们需要调用命令处理函数的时候，就需要用到函数指针，我们可以定义如下：</p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">typedef</span> <span class="type">unsigned</span> <span class="title function_">int</span> <span class="params">(*Host_Cmd_Process_Func)</span><span class="params">(<span class="type">int</span> arg, <span class="type">int</span> *pParam, <span class="type">void</span> *pBuf)</span>;            <span class="comment">// 定义指向主机命令处理函数的指针</span></span><br></pre></td></tr></table></figure>

<p>（1）（*Host_Cmd_Process_Func)中，Host_Cmd_Process_Func是一个指针变量；</p>
<p>（2）再看后边的括号，里边有三个参数，所以Host_Cmd_Process_Func可以指向一个带有三个参数的函数；</p>
<p>（3）最后看前边的unsigned int，说明函数返回值为 unsigned int 类型；</p>
<p>总的来说，Host_Cmd_Process_Func 可以指向一个返回值为 unsigned int 类型，含有三个参数的函数。</p>
<p><strong>【使用实例】</strong></p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">Host_Cmd_Process_Func pFunc = <span class="literal">NULL</span>;</span><br><span class="line"></span><br><span class="line">pFunc = (Host_Cmd_Process_Func)HostTest1;</span><br><span class="line"></span><br><span class="line">pFunc(arg, (<span class="type">int</span> *)&amp;pParam, (<span class="type">void</span> *)&amp;cmdBuf);</span><br></pre></td></tr></table></figure>

<h1 id="2-命令信息"><a href="#2-命令信息" class="headerlink" title="2.命令信息"></a><font size=3>2.命令信息</font></h1><h2 id="2-1命令描述"><a href="#2-1命令描述" class="headerlink" title="2.1命令描述"></a><font size=3>2.1命令描述</font></h2><p>每一条命令都包含以下信息：</p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// 命令描述结构体——存放在命令数组中的每条命令要包含的信息数据</span></span><br><span class="line"><span class="keyword">typedef</span> <span class="class"><span class="keyword">struct</span></span></span><br><span class="line"><span class="class">&#123;</span></span><br><span class="line">	<span class="type">unsigned</span> <span class="type">long</span> <span class="type">long</span> value1;      <span class="comment">// 8字节 64位</span></span><br><span class="line">	<span class="type">unsigned</span> <span class="type">long</span> <span class="type">long</span> value2;      <span class="comment">// 8字节 64位</span></span><br><span class="line">	Host_Cmd_Process_Func pFunc;    <span class="comment">// 主机命令对应的处理函数</span></span><br><span class="line">&#125; HOST_CMD_DETAIL;</span><br></pre></td></tr></table></figure>

<h2 id="2-2命令信息组合"><a href="#2-2命令信息组合" class="headerlink" title="2.2命令信息组合"></a><font size=3>2.2命令信息组合</font></h2><p>我们定义一个宏，来组合在写命令的时候想给命令的参数：</p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// 命令数组的成员组合——将数据组合，方便存放在命令数组中</span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> MAKE_HOST_CMD(_wait_, _type_, _bPara_, _bRetPara_, _buf_, _retBuf_, _func_)   \</span></span><br><span class="line"><span class="meta">	&#123; \</span></span><br><span class="line"><span class="meta">		(_wait_ &amp; 0xffff) | ((_type_ &amp; 3) &lt;&lt; 16) | ((_bPara_ &amp; 1) &lt;&lt; 18) | ((_bRetPara_ &amp; 1) &lt;&lt; 19), \</span></span><br><span class="line"><span class="meta">		((_retBuf_ &amp; 0xffff) &lt;&lt; 16) | (_buf_ &amp; 0xffff), \</span></span><br><span class="line"><span class="meta">		_func_ \</span></span><br><span class="line"><span class="meta">	&#125;</span></span><br></pre></td></tr></table></figure>

<h2 id="2-3命令数组定义"><a href="#2-3命令数组定义" class="headerlink" title="2.3命令数组定义"></a><font size=3>2.3命令数组定义</font></h2><p>我们收到命令后，回到这些数组中寻找对应的命令信息，命令的处理函数也将在这里获取，这里：</p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// 保存每一条命令信息的数组</span></span><br><span class="line">HOST_CMD_DETAIL hostCmdDetail[] =</span><br><span class="line">&#123;</span><br><span class="line">	<span class="comment">// 0,100</span></span><br><span class="line">	MAKE_HOST_CMD(<span class="number">10000</span>, <span class="number">0</span>,	<span class="number">1</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, (Host_Cmd_Process_Func)HostTest1),</span><br><span class="line">	<span class="comment">// 1,101</span></span><br><span class="line">	MAKE_HOST_CMD(<span class="number">10000</span>, <span class="number">0</span>,	<span class="number">1</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, (Host_Cmd_Process_Func)HostTest2),</span><br><span class="line">&#125;;</span><br><span class="line"></span><br><span class="line"><span class="comment">// 保存每一条命令信息的数组</span></span><br><span class="line">HOST_CMD_DETAIL smartHostCmdDetail[] =</span><br><span class="line">&#123;</span><br><span class="line">	<span class="comment">// 0,200</span></span><br><span class="line">	MAKE_HOST_CMD(<span class="number">10000</span>, <span class="number">0</span>,	<span class="number">1</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, (Host_Cmd_Process_Func)SmartHostTest1),</span><br><span class="line">	<span class="comment">// 1,201</span></span><br><span class="line">	MAKE_HOST_CMD(<span class="number">10000</span>, <span class="number">0</span>,	<span class="number">1</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, (Host_Cmd_Process_Func)SmartHostTest2),</span><br><span class="line">&#125;;</span><br></pre></td></tr></table></figure>

<h2 id="2-4命令编号定义"><a href="#2-4命令编号定义" class="headerlink" title="2.4命令编号定义"></a><font size=3>2.4命令编号定义</font></h2><figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// 命令的编号——每个命令的编号</span></span><br><span class="line"><span class="keyword">typedef</span> <span class="class"><span class="keyword">enum</span></span></span><br><span class="line"><span class="class">&#123;</span></span><br><span class="line">	HOST_CMD_TEST1 = HOST_CMD_MIN, <span class="comment">// 100</span></span><br><span class="line">	HOST_CMD_TEST2,                <span class="comment">// 101</span></span><br><span class="line">	HOST_CMD_TEST3,                <span class="comment">// 102</span></span><br><span class="line">	<span class="comment">// ... ...</span></span><br><span class="line">	HOST_CMD_MAX,                  <span class="comment">// 主机命令最大编号，在最大编号上边新增命令编号</span></span><br><span class="line">	</span><br><span class="line">	SMART_HOST_CMD_TEST1 = SMART_HOST_CMD_MIN, <span class="comment">// 200</span></span><br><span class="line">	SMART_HOST_CMD_TEST2,         <span class="comment">// 201</span></span><br><span class="line">	SMART_HOST_CMD_TEST3,         <span class="comment">// 202</span></span><br><span class="line">	<span class="comment">// ... ...</span></span><br><span class="line">	SMART_HOST_CMD_MAX,           <span class="comment">// SMART主机命令最大编号，在最大编号上边新增命令编号</span></span><br><span class="line">&#125;HOST_CMD;</span><br><span class="line"></span><br></pre></td></tr></table></figure>

<h2 id="2-5命令区分"><a href="#2-5命令区分" class="headerlink" title="2.5命令区分"></a><font size=3>2.5命令区分</font></h2><p>我们会有不同的命令，我们通过不同的值区间：</p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#<span class="keyword">define</span> HOST_CMD_MIN         100  <span class="comment">// 主机命令最小的命令编号，只有大于等于此值的命令编号才会被识别为主机命令</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> SMART_HOST_CMD_MIN   200  <span class="comment">// SMART主机命令最小的命令编号，只有大于等于此值的命令编号才会被识别为SMART主机命令</span></span></span><br></pre></td></tr></table></figure>

<h1 id="3-使用实例"><a href="#3-使用实例" class="headerlink" title="3.使用实例"></a><font size=3>3.使用实例</font></h1><h2 id="3-1-sys-cmd-info-h"><a href="#3-1-sys-cmd-info-h" class="headerlink" title="3.1 sys_cmd_info.h"></a><font size=3>3.1 sys_cmd_info.h</font></h2><details class="folding-tag" blue><summary> 点击查看详情 </summary>
              <div class='content'>
              <figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#<span class="keyword">ifndef</span> __SYS_CMD_INFO_H__</span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> __SYS_CMD_INFO_H__</span></span><br><span class="line"></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> HOST_CMD_MIN         100  <span class="comment">// 主机命令最小的命令编号，只有大于等于此值的命令编号才会被识别为主机命令</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> SMART_HOST_CMD_MIN   200  <span class="comment">// SMART主机命令最小的命令编号，只有大于等于此值的命令编号才会被识别为SMART主机命令</span></span></span><br><span class="line"></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> GET_CMD_FUNC(_cmd_) ((_cmd_).pFunc) <span class="comment">// 获取数组中元素的命令处理函数成员</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> HOST_CMD_PROCESS_FUNC(_name_) (unsigned int _name_(int arg, int *pParam, void *pBuf)) <span class="comment">// 方便定义命令处理函数的函数名</span></span></span><br><span class="line"><span class="keyword">typedef</span> <span class="type">unsigned</span> <span class="title function_">int</span> <span class="params">(*Host_Cmd_Process_Func)</span><span class="params">(<span class="type">int</span> arg, <span class="type">int</span> *pParam, <span class="type">void</span> *pBuf)</span>;            <span class="comment">// 定义指向主机命令处理函数的指针</span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 命令数组的成员组合——将数据组合，方便存放在命令数组中</span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> MAKE_HOST_CMD(_wait_, _type_, _bPara_, _bRetPara_, _buf_, _retBuf_, _func_)   \</span></span><br><span class="line"><span class="meta">	&#123; \</span></span><br><span class="line"><span class="meta">		(_wait_ &amp; 0xffff) | ((_type_ &amp; 3) &lt;&lt; 16) | ((_bPara_ &amp; 1) &lt;&lt; 18) | ((_bRetPara_ &amp; 1) &lt;&lt; 19), \</span></span><br><span class="line"><span class="meta">		((_retBuf_ &amp; 0xffff) &lt;&lt; 16) | (_buf_ &amp; 0xffff), \</span></span><br><span class="line"><span class="meta">		_func_ \</span></span><br><span class="line"><span class="meta">	&#125;</span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 命令描述结构体——存放在命令数组中的每条命令要包含的信息数据</span></span><br><span class="line"><span class="keyword">typedef</span> <span class="class"><span class="keyword">struct</span></span></span><br><span class="line"><span class="class">&#123;</span></span><br><span class="line">	<span class="type">unsigned</span> <span class="type">long</span> <span class="type">long</span> value1;      <span class="comment">// 8字节 64位</span></span><br><span class="line">	<span class="type">unsigned</span> <span class="type">long</span> <span class="type">long</span> value2;      <span class="comment">// 8字节 64位</span></span><br><span class="line">	Host_Cmd_Process_Func pFunc;    <span class="comment">// 主机命令对应的处理函数</span></span><br><span class="line">&#125; HOST_CMD_DETAIL;</span><br><span class="line"></span><br><span class="line"><span class="comment">// 命令下达时携带的数据</span></span><br><span class="line"><span class="keyword">typedef</span> <span class="class"><span class="keyword">struct</span></span></span><br><span class="line"><span class="class">&#123;</span></span><br><span class="line">	<span class="type">int</span> a;</span><br><span class="line">	<span class="type">char</span> b;</span><br><span class="line">&#125; _CMD_DATA;</span><br><span class="line"></span><br><span class="line"><span class="meta">#<span class="keyword">endif</span></span></span><br></pre></td></tr></table></figure>
              </div>
            </details>

<h2 id="3-2-sys-cmd-h"><a href="#3-2-sys-cmd-h" class="headerlink" title="3.2 sys_cmd.h"></a><font size=3>3.2 sys_cmd.h</font></h2><details class="folding-tag" blue><summary> 点击查看详情 </summary>
              <div class='content'>
              <figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#<span class="keyword">ifndef</span> __SYS_CMD_H__</span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> __SYS_CMD_H__</span></span><br><span class="line"></span><br><span class="line"><span class="meta">#<span class="keyword">include</span> <span class="string">&quot;sys_cmd_info.h&quot;</span></span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 命令的编号——每个命令的编号</span></span><br><span class="line"><span class="keyword">typedef</span> <span class="class"><span class="keyword">enum</span></span></span><br><span class="line"><span class="class">&#123;</span></span><br><span class="line">	HOST_CMD_TEST1 = HOST_CMD_MIN, <span class="comment">// 100</span></span><br><span class="line">	HOST_CMD_TEST2,                <span class="comment">// 101</span></span><br><span class="line">	HOST_CMD_TEST3,                <span class="comment">// 102</span></span><br><span class="line">	<span class="comment">// ... ...</span></span><br><span class="line">	HOST_CMD_MAX,                  <span class="comment">// 主机命令最大编号，在最大编号上边新增命令编号</span></span><br><span class="line">	</span><br><span class="line">	SMART_HOST_CMD_TEST1 = SMART_HOST_CMD_MIN, <span class="comment">// 200</span></span><br><span class="line">	SMART_HOST_CMD_TEST2,         <span class="comment">// 201</span></span><br><span class="line">	SMART_HOST_CMD_TEST3,         <span class="comment">// 202</span></span><br><span class="line">	<span class="comment">// ... ...</span></span><br><span class="line">	SMART_HOST_CMD_MAX,           <span class="comment">// SMART主机命令最大编号，在最大编号上边新增命令编号</span></span><br><span class="line">&#125;HOST_CMD;</span><br><span class="line"></span><br><span class="line"><span class="comment">// 命令处理函数的声明</span></span><br><span class="line">HOST_CMD_PROCESS_FUNC(HostTest1); <span class="comment">// unsigned int HostTest1(int chan, int *pParam, void *pBuf);</span></span><br><span class="line">HOST_CMD_PROCESS_FUNC(HostTest2); <span class="comment">// unsigned int HostTest2(int chan, int *pParam, void *pBuf);</span></span><br><span class="line"></span><br><span class="line">HOST_CMD_PROCESS_FUNC(SmartHostTest1); <span class="comment">// unsigned int SmartHostTest1(int chan, int *pParam, void *pBuf);</span></span><br><span class="line">HOST_CMD_PROCESS_FUNC(SmartHostTest2); <span class="comment">// unsigned int SmartHostTest2(int chan, int *pParam, void *pBuf);</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment">// 保存每一条命令信息的数组</span></span><br><span class="line">HOST_CMD_DETAIL hostCmdDetail[] =</span><br><span class="line">&#123;</span><br><span class="line">	<span class="comment">// 0,100</span></span><br><span class="line">	MAKE_HOST_CMD(<span class="number">10000</span>, <span class="number">0</span>,	<span class="number">1</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, (Host_Cmd_Process_Func)HostTest1),</span><br><span class="line">	<span class="comment">// 1,101</span></span><br><span class="line">	MAKE_HOST_CMD(<span class="number">10000</span>, <span class="number">0</span>,	<span class="number">1</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, (Host_Cmd_Process_Func)HostTest2),</span><br><span class="line">&#125;;</span><br><span class="line"></span><br><span class="line"><span class="comment">// 保存每一条命令信息的数组</span></span><br><span class="line">HOST_CMD_DETAIL smartHostCmdDetail[] =</span><br><span class="line">&#123;</span><br><span class="line">	<span class="comment">// 0,200</span></span><br><span class="line">	MAKE_HOST_CMD(<span class="number">10000</span>, <span class="number">0</span>,	<span class="number">1</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, (Host_Cmd_Process_Func)SmartHostTest1),</span><br><span class="line">	<span class="comment">// 1,201</span></span><br><span class="line">	MAKE_HOST_CMD(<span class="number">10000</span>, <span class="number">0</span>,	<span class="number">1</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, (Host_Cmd_Process_Func)SmartHostTest2),</span><br><span class="line">&#125;;</span><br><span class="line"></span><br><span class="line"><span class="meta">#<span class="keyword">endif</span></span></span><br></pre></td></tr></table></figure>
              </div>
            </details>

<h2 id="3-3-sys-cmd-c"><a href="#3-3-sys-cmd-c" class="headerlink" title="3.3 sys_cmd.c"></a><font size=3>3.3 sys_cmd.c</font></h2><details class="folding-tag" blue><summary> 点击查看详情 </summary>
              <div class='content'>
              <figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#<span class="keyword">include</span> <span class="string">&lt;stdio.h&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">include</span> <span class="string">&lt;stdlib.h&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">include</span> <span class="string">&quot;debug_printf.h&quot;</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">include</span> <span class="string">&quot;sys_cmd.h&quot;</span></span></span><br><span class="line"></span><br><span class="line"><span class="type">int</span> <span class="title function_">main</span><span class="params">(<span class="type">int</span> argc, <span class="type">const</span> <span class="type">char</span> *argv[])</span></span><br><span class="line">&#123;</span><br><span class="line">	<span class="comment">// 命令编号与命令的索引</span></span><br><span class="line">	<span class="type">int</span> cmd = <span class="number">0</span>;</span><br><span class="line">	<span class="type">int</span> cmdIndex = <span class="number">0</span>;</span><br><span class="line">	<span class="comment">// 传递给命令处理函数的参数</span></span><br><span class="line">	<span class="type">int</span> arg = <span class="number">0</span>;</span><br><span class="line">	<span class="type">int</span> pParam = <span class="number">0</span>;</span><br><span class="line">	_CMD_DATA cmdBuf = &#123;<span class="number">0</span>, <span class="string">&#x27;0&#x27;</span>&#125;;</span><br><span class="line">	</span><br><span class="line">	<span class="comment">// 指向命令处理函数的指针变量</span></span><br><span class="line">	Host_Cmd_Process_Func pFunc = <span class="literal">NULL</span>;</span><br><span class="line">	<span class="comment">// 指向命令数组的指针变量</span></span><br><span class="line">	HOST_CMD_DETAIL *pCmdDetail = <span class="literal">NULL</span>;</span><br><span class="line">	</span><br><span class="line">	<span class="comment">// 命令的相关数量计算</span></span><br><span class="line">	<span class="type">int</span> host_cmd_num = HOST_CMD_MAX - HOST_CMD_MIN;</span><br><span class="line">	<span class="type">int</span> smart_host_cmd_num = SMART_HOST_CMD_MAX - SMART_HOST_CMD_MIN;</span><br><span class="line">	<span class="type">int</span> host_cmd_func_num = <span class="keyword">sizeof</span>(hostCmdDetail)/<span class="keyword">sizeof</span>(hostCmdDetail[<span class="number">0</span>]);</span><br><span class="line">	<span class="type">int</span> smart_host_cmd_func_num = <span class="keyword">sizeof</span>(smartHostCmdDetail)/<span class="keyword">sizeof</span>(smartHostCmdDetail[<span class="number">0</span>]);</span><br><span class="line">	HKPRT(<span class="string">&quot;HOST_CMD:num %d,func %d\n&quot;</span>, host_cmd_num, host_cmd_func_num);</span><br><span class="line">	HKPRT(<span class="string">&quot;SMART_HOST_CMD:num %d,func %d\n&quot;</span>, smart_host_cmd_num, smart_host_cmd_func_num);</span><br><span class="line">	<span class="comment">// 命令的查找与处理</span></span><br><span class="line">	cmd = atoi(argv[<span class="number">1</span>]);</span><br><span class="line">	<span class="keyword">if</span>((cmd &gt;= HOST_CMD_MIN) &amp;&amp; (cmd &lt; HOST_CMD_MAX))</span><br><span class="line">	&#123;</span><br><span class="line">		arg = <span class="number">1</span>;</span><br><span class="line">		pParam = <span class="number">1</span>;</span><br><span class="line">		cmdBuf.a = <span class="number">100</span>;</span><br><span class="line">		cmdBuf.b = <span class="string">&#x27;a&#x27;</span>;</span><br><span class="line">		pCmdDetail = hostCmdDetail;</span><br><span class="line">		cmdIndex = cmd - HOST_CMD_MIN;</span><br><span class="line">		<span class="keyword">if</span>(cmdIndex &gt;= host_cmd_func_num) <span class="comment">// 判断一下防止访问数组越界</span></span><br><span class="line">		&#123;</span><br><span class="line">			HKPRTE(<span class="string">&quot;This function is not exist in hostCmdDetail[%d]!!! cmd:%d,cmdIndex:%d\n&quot;</span>, host_cmd_func_num, cmd, cmdIndex);</span><br><span class="line">			<span class="keyword">return</span> <span class="number">-1</span>;</span><br><span class="line">		&#125;</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="keyword">else</span> <span class="keyword">if</span>((cmd &gt;= SMART_HOST_CMD_MIN) &amp;&amp; (cmd &lt; SMART_HOST_CMD_MAX))</span><br><span class="line">	&#123;</span><br><span class="line">		arg = <span class="number">2</span>;</span><br><span class="line">		pParam = <span class="number">2</span>;</span><br><span class="line">		cmdBuf.a = <span class="number">200</span>;</span><br><span class="line">		cmdBuf.b = <span class="string">&#x27;b&#x27;</span>;</span><br><span class="line">		pCmdDetail = smartHostCmdDetail;</span><br><span class="line">		cmdIndex = cmd - SMART_HOST_CMD_MIN;</span><br><span class="line">		<span class="keyword">if</span>(cmdIndex &gt;= smart_host_cmd_func_num) <span class="comment">// 判断一下防止访问数组越界</span></span><br><span class="line">		&#123;</span><br><span class="line">			HKPRTE(<span class="string">&quot;This function is not exist in smartHostCmdDetail[%d]!!! cmd:%d,cmdIndex:%d\n&quot;</span>, smart_host_cmd_func_num, cmd, cmdIndex);</span><br><span class="line">			<span class="keyword">return</span> <span class="number">-1</span>;</span><br><span class="line">		&#125;</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="keyword">else</span></span><br><span class="line">	&#123;</span><br><span class="line">		HKPRTE(<span class="string">&quot;cmd number is invalid!!!\n&quot;</span>);</span><br><span class="line">		<span class="keyword">return</span> <span class="number">-1</span>;</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="comment">// 执行命令处理函数</span></span><br><span class="line">	pFunc = (Host_Cmd_Process_Func)(GET_CMD_FUNC(pCmdDetail[cmdIndex]));	<span class="comment">// hostCmdDetail</span></span><br><span class="line">	<span class="keyword">if</span>(pFunc == <span class="literal">NULL</span>)</span><br><span class="line">	&#123;</span><br><span class="line">		HKPRTE(<span class="string">&quot;This function is not exist!!! cmd:%d,cmdIndex:%d,pFunc:%p\n&quot;</span>, cmd, cmdIndex, pFunc);</span><br><span class="line">		<span class="keyword">return</span> <span class="number">-1</span>;</span><br><span class="line">	&#125;</span><br><span class="line">	pFunc(arg, (<span class="type">int</span> *)&amp;pParam, (<span class="type">void</span> *)&amp;cmdBuf);</span><br><span class="line">	</span><br><span class="line">	<span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment">//unsigned int HostTest1(int arg, int *pParam, void *pBuf)</span></span><br><span class="line">HOST_CMD_PROCESS_FUNC(HostTest1)</span><br><span class="line">&#123;</span><br><span class="line">	_CMD_DATA *p = (_CMD_DATA *)pBuf;</span><br><span class="line">	HKPRT(<span class="string">&quot;This is HostTest1!!!\n&quot;</span>);</span><br><span class="line">	HKPRT(<span class="string">&quot;arg=%d,*pParam=%d,pBuf.a=%d,pBuf.b=%c\n&quot;</span>, arg, *pParam, p-&gt;a, p-&gt;b);</span><br><span class="line">	<span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="comment">//unsigned int HostTest2(int arg, int *pParam, void *pBuf)</span></span><br><span class="line">HOST_CMD_PROCESS_FUNC(HostTest2)</span><br><span class="line">&#123;</span><br><span class="line">	_CMD_DATA *p = (_CMD_DATA *)pBuf;</span><br><span class="line">	HKPRT(<span class="string">&quot;This is HostTest2!!!\n&quot;</span>);</span><br><span class="line">	HKPRT(<span class="string">&quot;arg=%d,*pParam=%d,pBuf.a=%d,pBuf.b=%c\n&quot;</span>, arg, *pParam, p-&gt;a, p-&gt;b);</span><br><span class="line">	<span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="comment">//unsigned int SmartHostTest1(int arg, int *pParam, void *pBuf)</span></span><br><span class="line">HOST_CMD_PROCESS_FUNC(SmartHostTest1)</span><br><span class="line">&#123;</span><br><span class="line">	_CMD_DATA *p = (_CMD_DATA *)pBuf;</span><br><span class="line">	HKPRT(<span class="string">&quot;This is SmartHostTest1!!!\n&quot;</span>);</span><br><span class="line">	HKPRT(<span class="string">&quot;arg=%d,*pParam=%d,pBuf.a=%d,pBuf.b=%c\n&quot;</span>, arg, *pParam, p-&gt;a, p-&gt;b);</span><br><span class="line">	<span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="comment">//unsigned int SmartHostTest2(int arg, int *pParam, void *pBuf)</span></span><br><span class="line">HOST_CMD_PROCESS_FUNC(SmartHostTest2)</span><br><span class="line">&#123;</span><br><span class="line">	_CMD_DATA *p = (_CMD_DATA *)pBuf;</span><br><span class="line">	HKPRT(<span class="string">&quot;This is SmartHostTest2!!!\n&quot;</span>);</span><br><span class="line">	HKPRT(<span class="string">&quot;arg=%d,*pParam=%d,pBuf.a=%d,pBuf.b=%c\n&quot;</span>, arg, *pParam, p-&gt;a, p-&gt;b);</span><br><span class="line">	<span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
              </div>
            </details>

<h2 id="3-4-debug-printf-h"><a href="#3-4-debug-printf-h" class="headerlink" title="3.4 debug_printf.h"></a><font size=3>3.4 debug_printf.h</font></h2><details class="folding-tag" blue><summary> 点击查看详情 </summary>
              <div class='content'>
              <figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br><span class="line">116</span><br><span class="line">117</span><br><span class="line">118</span><br><span class="line">119</span><br><span class="line">120</span><br><span class="line">121</span><br><span class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">/** =====================================================</span></span><br><span class="line"><span class="comment"> * Copyright © hk. 2022-2025. All rights reserved.</span></span><br><span class="line"><span class="comment"> * File name  : test.c</span></span><br><span class="line"><span class="comment"> * Author     : qidaink</span></span><br><span class="line"><span class="comment"> * Date       : 2022-11-08</span></span><br><span class="line"><span class="comment"> * Version    : </span></span><br><span class="line"><span class="comment"> * Description: 里边的函数定义最好还是写到C文件中，这里只是为了方便</span></span><br><span class="line"><span class="comment"> * Others     : </span></span><br><span class="line"><span class="comment"> * Log        : </span></span><br><span class="line"><span class="comment"> * ======================================================</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="meta">#<span class="keyword">ifndef</span> __DEBUG_PRINTF_H__</span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> __DEBUG_PRINTF_H__</span></span><br><span class="line"></span><br><span class="line"><span class="meta">#<span class="keyword">include</span> <span class="string">&lt;stdio.h&gt;</span></span></span><br><span class="line"></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> DEBUG_ENABLE  1           <span class="comment">/* 是否开启调试信息 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> LOG_LEVEL     DEBUG_ALL   <span class="comment">/* 调试信息显示级别 */</span></span></span><br><span class="line"> </span><br><span class="line"><span class="meta">#<span class="keyword">define</span> ERROR   <span class="string">&quot;ERROR&quot;</span>           <span class="comment">/* 错误 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> WARN    <span class="string">&quot;WARN &quot;</span>           <span class="comment">/* 警告 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> INFO    <span class="string">&quot;INFO &quot;</span>           <span class="comment">/* 信息 */</span></span></span><br><span class="line"><span class="comment">/* 颜色定义——字体颜色 */</span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> CLS_ALL        <span class="string">&quot;\033[0m&quot;</span>  <span class="comment">/* 清除所有颜色 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> F_BLACK        <span class="string">&quot;\033[30m&quot;</span> <span class="comment">/* 黑色字体 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> F_RED          <span class="string">&quot;\033[31m&quot;</span> <span class="comment">/* 红色字体 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> F_GREEN        <span class="string">&quot;\033[32m&quot;</span> <span class="comment">/* 绿色字体 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> F_YELLOW       <span class="string">&quot;\033[33m&quot;</span> <span class="comment">/* 黄色字体 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> F_BLUE         <span class="string">&quot;\033[34m&quot;</span> <span class="comment">/* 蓝色字体 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> F_PURPLE       <span class="string">&quot;\033[35m&quot;</span> <span class="comment">/* 紫色字体 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> F_CYAN         <span class="string">&quot;\033[36m&quot;</span> <span class="comment">/* 青色字体 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> F_WHITE        <span class="string">&quot;\033[37m&quot;</span> <span class="comment">/* 白色字体 */</span></span></span><br><span class="line"><span class="comment">/* 颜色定义——背景颜色 */</span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> B_BLACK        <span class="string">&quot;\033[40m&quot;</span> <span class="comment">/* 黑色背景 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> B_RED          <span class="string">&quot;\033[41m&quot;</span> <span class="comment">/* 红色背景 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> B_GREEN        <span class="string">&quot;\033[42m&quot;</span> <span class="comment">/* 绿色背景 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> B_YELLOW       <span class="string">&quot;\033[43m&quot;</span> <span class="comment">/* 黄色背景 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> B_BLUE         <span class="string">&quot;\033[44m&quot;</span> <span class="comment">/* 蓝色背景 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> B_PURPLE       <span class="string">&quot;\033[45m&quot;</span> <span class="comment">/* 紫色背景 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> B_CYAN         <span class="string">&quot;\033[46m&quot;</span> <span class="comment">/* 青色背景 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> B_WHITE        <span class="string">&quot;\033[47m&quot;</span> <span class="comment">/* 白色背景 */</span></span></span><br><span class="line"><span class="comment">/* 颜色定义——背景的字体 */</span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> BLACK_RED      <span class="string">&quot;\033[30;41m&quot;</span> <span class="comment">/* 红底黑字 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> BLACK_GREEN    <span class="string">&quot;\033[30;42m&quot;</span> <span class="comment">/* 绿底黑字 */</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> BLACK_YELLOW   <span class="string">&quot;\033[30;43m&quot;</span> <span class="comment">/* 黄底黑字 */</span></span></span><br><span class="line"></span><br><span class="line"><span class="comment">/* 调试等级枚举类型定义 */</span></span><br><span class="line"><span class="class"><span class="keyword">enum</span> <span class="title">DEBUG_LEVEL</span></span></span><br><span class="line"><span class="class">&#123;</span></span><br><span class="line">    DEBUG_OFF   = <span class="number">0</span>,</span><br><span class="line">    DEBUG_ERROR = <span class="number">1</span>,</span><br><span class="line">    DEBUG_WARN  = <span class="number">2</span>,</span><br><span class="line">    DEBUG_INFO  = <span class="number">3</span>,</span><br><span class="line">    DEBUG_ALL   = <span class="number">4</span></span><br><span class="line">&#125;;</span><br><span class="line"><span class="comment">//===========================================================================</span></span><br><span class="line"><span class="comment">/* 自定义类型和字体颜色 */</span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> MYDEBUG(TYPE, COLOR, FMT, ARGS...) \</span></span><br><span class="line"><span class="meta">        do \</span></span><br><span class="line"><span class="meta">        &#123; \</span></span><br><span class="line"><span class="meta">            <span class="keyword">if</span>(DEBUG_ENABLE &amp;&amp; (DEBUG_##TYPE &lt;= LOG_LEVEL)) \</span></span><br><span class="line"><span class="meta">            &#123; \</span></span><br><span class="line"><span class="meta">                printf(COLOR); \</span></span><br><span class="line"><span class="meta">                printf(<span class="string">&quot;[%s][%s:%s:%d]&quot;</span>FMT, TYPE, __FILE__, __FUNCTION__, __LINE__, ##ARGS); \</span></span><br><span class="line"><span class="meta">                printf(CLS_AL<span class="string">L&quot;\n&quot;</span>); \</span></span><br><span class="line"><span class="meta">            &#125; \</span></span><br><span class="line"><span class="meta">        &#125; while(0)</span></span><br><span class="line"><span class="comment">//===========================================================================</span></span><br><span class="line"><span class="comment">/* 平时调试使用 */</span></span><br><span class="line"><span class="meta">#<span class="keyword">include</span> <span class="string">&lt;string.h&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">include</span> <span class="string">&lt;time.h&gt;</span> <span class="comment">// 时间函数用</span></span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> filename(x) (strrchr(x,<span class="string">&#x27;/&#x27;</span>)?(strrchr(x,<span class="string">&#x27;/&#x27;</span>)+1):x)</span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> NORMAL_DEBUG 1 <span class="comment">// 注意使用下边两个宏需要自己添加换行，比较符合平时的习惯</span></span></span><br><span class="line"><span class="comment">// 获取时间函数</span></span><br><span class="line"><span class="type">char</span> *<span class="title function_">timeString</span><span class="params">(<span class="type">void</span>)</span></span><br><span class="line">&#123;</span><br><span class="line">  <span class="class"><span class="keyword">struct</span> <span class="title">timespec</span> <span class="title">ts</span>;</span></span><br><span class="line">  clock_gettime(CLOCK_REALTIME, &amp;ts);</span><br><span class="line">  <span class="class"><span class="keyword">struct</span> <span class="title">tm</span> *<span class="title">timeinfo</span> =</span> localtime(&amp;ts.tv_sec);</span><br><span class="line">  <span class="type">static</span> <span class="type">char</span> timeString[<span class="number">30</span>];</span><br><span class="line">  <span class="built_in">sprintf</span>(timeString, <span class="string">&quot;%.2d-%.2d %.2d:%.2d:%.2d&quot;</span>, </span><br><span class="line">          timeinfo-&gt;tm_mon + <span class="number">1</span>, </span><br><span class="line">          timeinfo-&gt;tm_mday, </span><br><span class="line">          timeinfo-&gt;tm_hour, </span><br><span class="line">          timeinfo-&gt;tm_min, </span><br><span class="line">          timeinfo-&gt;tm_sec);</span><br><span class="line">  <span class="keyword">return</span> timeString;</span><br><span class="line">&#125;</span><br><span class="line"><span class="comment">// 获取系统时间戳 单位 ms</span></span><br><span class="line"><span class="type">int</span> <span class="title function_">sys_pts_get_ms</span><span class="params">(<span class="type">void</span>)</span></span><br><span class="line">&#123;</span><br><span class="line">    <span class="class"><span class="keyword">struct</span> <span class="title">timespec</span> <span class="title">tv</span>;</span></span><br><span class="line">    <span class="type">long</span> <span class="type">long</span> lasttime = <span class="number">0</span>;</span><br><span class="line"></span><br><span class="line">    clock_gettime(CLOCK_MONOTONIC, &amp;tv);</span><br><span class="line">    lasttime = tv.tv_sec * <span class="number">1000</span> + tv.tv_nsec / (<span class="number">1000</span> * <span class="number">1000</span>);</span><br><span class="line">    <span class="keyword">return</span> lasttime;</span><br><span class="line"></span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> HKPRT(fmt...) \</span></span><br><span class="line"><span class="meta">        do \</span></span><br><span class="line"><span class="meta">        &#123; \</span></span><br><span class="line"><span class="meta">            <span class="keyword">if</span>(NORMAL_DEBUG) \</span></span><br><span class="line"><span class="meta">            &#123; \</span></span><br><span class="line"><span class="meta">                printf(F_YELLOW); \</span></span><br><span class="line"><span class="meta">                printf(<span class="string">&quot;[%s][HK_LOG][%s:%d][%s]&quot;</span>, timeString(), filename(__FILE__), __LINE__, __FUNCTION__); \</span></span><br><span class="line"><span class="meta">                printf(CLS_ALL); \</span></span><br><span class="line"><span class="meta">                printf(fmt); \</span></span><br><span class="line"><span class="meta">            &#125; \</span></span><br><span class="line"><span class="meta">        &#125; while(0)</span></span><br><span class="line"><span class="meta">#<span class="keyword">define</span> HKPRTE(fmt...) \</span></span><br><span class="line"><span class="meta">        do \</span></span><br><span class="line"><span class="meta">        &#123; \</span></span><br><span class="line"><span class="meta">            <span class="keyword">if</span>(NORMAL_DEBUG) \</span></span><br><span class="line"><span class="meta">            &#123; \</span></span><br><span class="line"><span class="meta">                printf(F_RED); \</span></span><br><span class="line"><span class="meta">                printf(<span class="string">&quot;[%s][HK_LOG][%s:%d][%s]&quot;</span>, timeString(), filename(__FILE__), __LINE__, __FUNCTION__); \</span></span><br><span class="line"><span class="meta">                printf(CLS_ALL); \</span></span><br><span class="line"><span class="meta">                printf(fmt); \</span></span><br><span class="line"><span class="meta">            &#125; \</span></span><br><span class="line"><span class="meta">        &#125; while(0)</span></span><br><span class="line"></span><br><span class="line"><span class="meta">#<span class="keyword">endif</span></span></span><br></pre></td></tr></table></figure>
              </div>
            </details>

<h2 id="3-5-测试结果"><a href="#3-5-测试结果" class="headerlink" title="3.5 测试结果"></a><font size=3>3.5 测试结果</font></h2><p>我们通过以下命令编译：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">gcc sys_cmd.c -Wall</span><br></pre></td></tr></table></figure>

<p>运行结果如下：</p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br></pre></td><td class="code"><pre><span class="line">hk@vm:~/<span class="number">6</span>temp/test$ ./a.out <span class="number">101</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">55</span>:<span class="number">56</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">37</span>][main]HOST_CMD:num <span class="number">3</span>,func <span class="number">2</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">55</span>:<span class="number">56</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">38</span>][main]SMART_HOST_CMD:num <span class="number">3</span>,func <span class="number">2</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">55</span>:<span class="number">56</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">100</span>][HostTest2]This is HostTest2!!!</span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">55</span>:<span class="number">56</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">101</span>][HostTest2]arg=<span class="number">1</span>,*pParam=<span class="number">1</span>,pBuf.a=<span class="number">100</span>,pBuf.b=a</span><br><span class="line">hk@vm:~/<span class="number">6</span>temp/test$ ./a.out <span class="number">102</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">55</span>:<span class="number">59</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">37</span>][main]HOST_CMD:num <span class="number">3</span>,func <span class="number">2</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">55</span>:<span class="number">59</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">38</span>][main]SMART_HOST_CMD:num <span class="number">3</span>,func <span class="number">2</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">55</span>:<span class="number">59</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">51</span>][main]This function is not exist in hostCmdDetail[<span class="number">2</span>]!!! cmd:<span class="number">102</span>,cmdIndex:<span class="number">2</span></span><br><span class="line">hk@vm:~/<span class="number">6</span>temp/test$ ./a.out <span class="number">103</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">56</span>:<span class="number">03</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">37</span>][main]HOST_CMD:num <span class="number">3</span>,func <span class="number">2</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">56</span>:<span class="number">03</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">38</span>][main]SMART_HOST_CMD:num <span class="number">3</span>,func <span class="number">2</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">56</span>:<span class="number">03</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">71</span>][main]cmd number is invalid!!!</span><br><span class="line">hk@vm:~/<span class="number">6</span>temp/test$ ./a.out <span class="number">201</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">56</span>:<span class="number">08</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">37</span>][main]HOST_CMD:num <span class="number">3</span>,func <span class="number">2</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">56</span>:<span class="number">08</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">38</span>][main]SMART_HOST_CMD:num <span class="number">3</span>,func <span class="number">2</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">56</span>:<span class="number">08</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">118</span>][SmartHostTest2]This is SmartHostTest2!!!</span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">56</span>:<span class="number">08</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">119</span>][SmartHostTest2]arg=<span class="number">2</span>,*pParam=<span class="number">2</span>,pBuf.a=<span class="number">200</span>,pBuf.b=b</span><br><span class="line">hk@vm:~/<span class="number">6</span>temp/test$ ./a.out <span class="number">203</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">56</span>:<span class="number">10</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">37</span>][main]HOST_CMD:num <span class="number">3</span>,func <span class="number">2</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">56</span>:<span class="number">10</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">38</span>][main]SMART_HOST_CMD:num <span class="number">3</span>,func <span class="number">2</span></span><br><span class="line">[<span class="number">02</span><span class="number">-12</span> <span class="number">17</span>:<span class="number">56</span>:<span class="number">10</span>][HK_LOG][<span class="number">01</span>_sys_cmd.c:<span class="number">71</span>][main]cmd number is invalid!!!</span><br></pre></td></tr></table></figure>


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